/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License. You may obtain a
 * copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package org.apache.maven.lifecycle.internal.stub;

import org.apache.maven.lifecycle.internal.ProjectSegment;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletionService;
import java.util.concurrent.Future;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;

/**
 * @author Kristian Rosenvold
 */
public class CompletionServiceStub implements CompletionService<ProjectSegment> {
  List<FutureTask<ProjectSegment>> projectBuildFutureTasks = Collections
      .synchronizedList(new ArrayList<FutureTask<ProjectSegment>>());

  final boolean finishImmediately;

  public int size() {
    return projectBuildFutureTasks.size();
  }

  public CompletionServiceStub(boolean finishImmediately) {
    this.finishImmediately = finishImmediately;
  }

  public Future<ProjectSegment> submit(Callable<ProjectSegment> task) {
    FutureTask<ProjectSegment> projectBuildFutureTask = new FutureTask<ProjectSegment>(task);
    projectBuildFutureTasks.add(projectBuildFutureTask);
    if (finishImmediately) {
      projectBuildFutureTask.run();
    }
    return projectBuildFutureTask;
  }

  public Future<ProjectSegment> submit(Runnable task, ProjectSegment result) {
    FutureTask<ProjectSegment> projectBuildFutureTask = new FutureTask<ProjectSegment>(task, result);
    projectBuildFutureTasks.add(projectBuildFutureTask);
    if (finishImmediately) {
      projectBuildFutureTask.run();
    }
    return projectBuildFutureTask;
  }

  public Future<ProjectSegment> take() throws InterruptedException {
    return null;
  }

  public Future<ProjectSegment> poll() {
    return null;
  }

  public Future<ProjectSegment> poll(long timeout, TimeUnit unit) throws InterruptedException {
    return null;
  }
}
